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S&p 500 Performance
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High-performance SARIMAX (Seasonal ARIMA with eXogenous regressors) engine in Rust with statsmodels-compatible Python API
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Published
May 23, 2026, 05:11 PM
Author
new9279@gachon.ac.kr
Source
Pypi.org
Frequently asked · S&p 500 Performance
Why is SpaceX not included in the S&P 500?
The S&P 500 index committee maintains a 12-month waiting period for new IPOs and requires companies to meet specific profitability tests, which SpaceX has not yet satisfied.
What is the historical performance of the S&P 500?
The index has delivered approximately 10% average annual returns over the long term, with gains of over 25% in 2023 and 2024.
How can investors gain exposure to companies excluded from the S&P 500?
Investors may look to other market benchmarks like the Nasdaq 100 or Russell 1000, or utilize thematic ETFs that hold pre-IPO or direct stakes in specific companies.